Unsolicited bulk email ("Spam") is a nuisance that is a nuisance
for users and a serious problem for the Service Providers who find
significant amounts of their computer resources being stolen. This
page gives resources for dealing positively with the problem.

Hand in hand with spam is the problem of a few of your well-meaing
friends sending you a warning about the "most dangerous virus known"
which you are encouraged to also rebroadcast to all your friends.
Here is a page with links to resources to check this out before you
become victim of yet another Internet hoax (And possibly add your
and all your friends' email addresses to yet another spammer list)

Frauds

E-Commerce and online privacy can be a challenge for everyone. This
link below gives a collection of references for tips on avoiding problems
and resources if something goes awry.